Question

Identify the low-cost onsite sewage disposal system.

• A. Septic tank
• B. Composting pits
• C. Chemical toilets
• D. All of the above

Answer 1

The correct option is D All of the above

To improve sanitation, low-cost onsite sewage disposal systems are being encouraged. Examples are septic tanks, chemical toilets, composting pits.

• Septic tanks are suitable for places where there is no sewerage system, for hospitals, isolated buildings or a cluster of 4 to 5 houses.
• Some organisations offer hygienic on-site human waste disposal technology. These toilets do not require scavenging. Excreta from the toilet seats flow through covered drains into a biogas plant. The biogas produced is used as a source of energy.
• A chemical toilet collects human excreta in a holding tank and uses chemicals to minimize odours. These toilets are usually, but not always, self-contained and movable. A chemical toilet is structured around a relatively small tank, which needs to be emptied frequently.
  

So, the correct answer is 'D'.